Korean Circ J.  2023 Oct;53(10):722-725. 10.4070/kcj.2023.0173.

Underexpanded Stent and ForceFocused Double Buddy-Wire

• Lim PO

• KMID: 2546997
• DOI: http://doi.org/10.4070/kcj.2023.0173

Figure

• 

  Figure 1 Stent underexpansion and force-focused double buddy-wire.(A) Right coronary artery with 2 tight tandem lesions. (B) Underexpanded stent from underprepared vessel or recoil on stent-boost and (C) on angiogram. (D) Triple guidewires with high pressure 4.0×20 mm non-compliant balloon inflation. (E) Stent-boost showing a fully expanded stent and (F) on corresponding angiogram.

• 

  Figure 2 Optical coherence tomography and stent expansion.(A) Optical coherence tomography showing the underexpanded stent within a fibrotic lesion with a diameter of 1.62–1.86 mm, mean 1.74 mm, and (B) shows the longitudinal stent profile. (C) Following force-focused double buddy-wire post-dilation with a luminal gain of 3.20–4.23 mm, mean 3.72 mm, and (D) shows the expanded stent along its axis.

Reference

1. Yazdanfar S, Ledley GS, Alfieri A, Strauss C, Kotler MN. Parallel angioplasty dilatation catheter and guide wire: a new technique for the dilatation of calcified coronary arteries. Cathet Cardiovasc Diagn. 1993; 28:72–75. PMID: 8416337.

2. Burzotta F, Trani C, Mazzari MA, et al. Use of a second buddy wire during percutaneous coronary interventions: a simple solution for some challenging situations. J Invasive Cardiol. 2005; 17:171–174. PMID: 15867450.

3. Solar RJ, Ischinger TA. Focused force angioplasty: theory and application. Cardiovasc Radiat Med. 2003; 4:47–50. PMID: 12892774.

4. Hu XQ, Tang L, Zhou SH, Fang ZF, Shen XQ. A novel approach to facilitating balloon crossing chronic total occlusions: the “wire-cutting” technique. J Interv Cardiol. 2012; 25:297–303. PMID: 22420421.

5. Stillabower ME. Longitudinal force focused coronary angioplasty: a technique for resistant lesions. Cathet Cardiovasc Diagn. 1994; 32:196–198. PMID: 8062377.